报错信息:
CMake Error at cmake/android/OpenCVDetectAndroidSDK.cmake:49 (message): Android SDK: specify path to Android SDK via ANDROID_SDK_ROOT / ANDROID_HOME / ANDROID_SDK variables Call Stack (most recent call first): cmake/android/OpenCVDetectAndroidSDK.cmake:172 (ocv_detect_android_sdk) CMakeLists.txt:764 (include)
如图，有人知道怎么解决吗？
